/* =========================================================
   LIÊN HỆ 2D TỘC SHOP — scope .contact-2dtoc-page
   ========================================================= */

.contact-2dtoc-page {
	--c-navy: #102a56;
	--c-sky: #4db8ff;
	--c-soft: #eaf7ff;
	--c-gray: #f6f8fb;
	--c-pink: #ff7bbf;
	--c-purple: #8b5cf6;
	--c-text: #102a56;
	--c-muted: #5b6b86;
	--c-radius: 24px;
	--c-shadow: 0 12px 30px rgba(16, 42, 86, 0.08);
	--c-container: 1100px;
	font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
	color: var(--c-text);
	line-height: 1.7;
	/* Chừa khoảng đệm để hero không đè lên breadcrumb */
	padding-top: 38px;
}
.contact-2dtoc-page * { box-sizing: border-box; }
.contact-2dtoc-page p { margin: 0 0 14px; color: var(--c-muted); }
.contact-2dtoc-page p:last-child { margin-bottom: 0; }

/* Chặn cuộn ngang (file chỉ tải ở trang Liên hệ nên an toàn) */
body { overflow-x: clip; }

/* ---------- Container & Section ---------- */
.contact-2dtoc__container { max-width: var(--c-container); margin: 0 auto; padding: 0 20px; }
.contact-2dtoc__section { padding: 60px 0; position: relative; }
.c-fill-hero, .c-fill-soft {
	width: 100vw;
	margin-left: calc(50% - 50vw);
	margin-right: calc(50% - 50vw);
}
.c-fill-hero { background: linear-gradient(180deg, var(--c-soft), #fff); }
.c-fill-hero::before {
	content: "";
	position: absolute;
	inset: 0;
	background-image: radial-gradient(rgba(77, 184, 255, 0.18) 1.5px, transparent 1.5px);
	background-size: 22px 22px;
	opacity: 0.6;
	pointer-events: none;
}
.c-fill-soft { background: var(--c-gray); }

/* ---------- Headings ---------- */
.c-hero__title { font-size: clamp(28px, 4vw, 42px); line-height: 1.2; font-weight: 800; margin: 0 0 14px; color: var(--c-navy); }
.contact-2dtoc__h2 { font-size: clamp(22px, 3vw, 30px); line-height: 1.25; font-weight: 800; margin: 0 0 10px; color: var(--c-navy); }
.c-card__title { font-size: 18px; font-weight: 700; margin: 0 0 8px; color: var(--c-navy); }
.c-head { text-align: center; max-width: 700px; margin: 0 auto 36px; }
.c-on-dark { color: #fff; }

/* ---------- Buttons ---------- */
.contact-2dtoc__btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	padding: 13px 24px;
	border-radius: 999px;
	font-weight: 700;
	font-size: 15px;
	text-decoration: none;
	border: 2px solid transparent;
	cursor: pointer;
	transition: transform 0.2s ease, background 0.3s ease, box-shadow 0.2s ease;
}
.contact-2dtoc__btn svg { width: 18px; height: 18px; }
.contact-2dtoc__btn:focus-visible { outline: 3px solid var(--c-purple); outline-offset: 2px; }
.contact-2dtoc__btn--primary { background: linear-gradient(135deg, var(--c-sky), var(--c-purple)); color: #fff; box-shadow: 0 8px 20px rgba(77, 184, 255, 0.3); }
.contact-2dtoc__btn--primary:hover { background: linear-gradient(135deg, var(--c-purple), var(--c-pink)); transform: translateY(-2px); }
.contact-2dtoc__btn--ghost { background: #fff; color: var(--c-navy); border-color: var(--c-sky); }
.contact-2dtoc__btn--ghost:hover { background: var(--c-soft); transform: translateY(-2px); }
.contact-2dtoc__btn--light { background: #fff; color: var(--c-navy); }
.contact-2dtoc__btn--light:hover { background: var(--c-soft); transform: translateY(-2px); }
.contact-2dtoc__btn--ghost-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.7); }
.contact-2dtoc__btn--ghost-light:hover { background: rgba(255, 255, 255, 0.12); transform: translateY(-2px); }

/* ---------- Cards ---------- */
.c-card { background: #fff; border: 1px solid #eef2f8; border-radius: var(--c-radius); box-shadow: var(--c-shadow); transition: transform 0.2s ease, box-shadow 0.2s ease; }
.c-card:hover { transform: translateY(-4px); box-shadow: 0 18px 36px rgba(16, 42, 86, 0.12); }
.c-icon { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; border-radius: 14px; background: var(--c-soft); color: var(--c-sky); margin-bottom: 12px; }
.c-icon svg { width: 26px; height: 26px; }

/* ---------- S1 Hero + QR card ---------- */
.c-hero__grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 44px; align-items: center; position: relative; z-index: 1; }
.c-hero__sub { font-size: 16px; margin-bottom: 22px; max-width: 540px; }
.c-hero__cta { display: flex; flex-wrap: wrap; gap: 14px; }
.c-qrcard { background: #fff; border-radius: var(--c-radius); box-shadow: var(--c-shadow); padding: 24px; text-align: center; max-width: 320px; margin: 0 auto; border: 1px solid #eef2f8; }
.c-qrcard__top { display: block; font-size: 15px; font-weight: 700; color: var(--c-navy); margin-bottom: 14px; }
.c-qrcard__img { width: 100%; aspect-ratio: 1; border-radius: 16px; background: linear-gradient(135deg, #dcefff, #ece6ff); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.c-qrcard__img img { width: 100%; height: 100%; object-fit: contain; background: #fff; }
.c-qrcard__img.is-empty::after { content: "zalo-qr.webp"; font-size: 12px; color: rgba(16, 42, 86, 0.45); }
.c-qrcard__bottom { display: block; font-size: 13px; color: var(--c-muted); margin-top: 14px; }
.c-qrcard--sm { max-width: 240px; }
.c-qrcard--sm .c-qrcard__img { aspect-ratio: 1; }

/* ---------- S2 Methods ---------- */
.c-methods__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.c-method { padding: 30px 28px; display: flex; flex-direction: column; align-items: flex-start; min-height: 100%; }
.c-method__email { font-size: 0; margin: 0 0 6px; }
.c-method__email a { font-size: 17px; font-weight: 700; color: var(--c-sky); text-decoration: none; word-break: break-all; }
.c-method__email a:hover { color: var(--c-purple); }
.c-method .contact-2dtoc__btn { margin-top: auto; }
.c-method > p:last-of-type { margin-bottom: 22px; }

/* ---------- S3 Topics ---------- */
.c-topics__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.c-topic { padding: 26px 22px; }

/* ---------- S4 Guide ---------- */
.c-guide__grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 44px; align-items: center; }
.c-guide__sub { font-size: 15px; margin-bottom: 18px; }
.c-checklist { list-style: none; margin: 0 0 24px; padding: 0; display: grid; gap: 12px; }
.c-checklist li { display: flex; gap: 12px; font-size: 15px; color: var(--c-text); align-items: flex-start; }
.c-check { flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%; background: var(--c-soft); position: relative; margin-top: 2px; }
.c-check::before { content: ""; position: absolute; left: 7px; top: 5px; width: 6px; height: 10px; border-right: 2px solid var(--c-sky); border-bottom: 2px solid var(--c-sky); transform: rotate(45deg); }

/* ---------- S5 Form ---------- */
.c-formsec__inner { max-width: 720px; }
.c-formwrap { padding: 30px 28px; }
.c-form__row { margin-bottom: 16px; }
.c-form label { display: block; font-size: 14px; font-weight: 600; color: var(--c-navy); margin-bottom: 6px; }
.c-form input, .c-form textarea {
	width: 100%;
	border: 1px solid #d6e2f0;
	border-radius: 12px;
	padding: 12px 14px;
	font-size: 15px;
	font-family: inherit;
	color: var(--c-text);
	background: #fff;
	transition: border-color 0.15s, box-shadow 0.15s;
}
.c-form input:focus, .c-form textarea:focus { outline: none; border-color: var(--c-sky); box-shadow: 0 0 0 3px rgba(77, 184, 255, 0.18); }
.c-form textarea { resize: vertical; }
.c-form .contact-2dtoc__btn { width: 100%; margin-top: 4px; }
.c-form__note { font-size: 13px; color: var(--c-muted); margin-top: 14px; text-align: center; }

/* ---------- S6 FAQ ---------- */
.c-faq__inner { max-width: 800px; }
.c-faq__list { display: grid; gap: 12px; }
.c-faq__item { background: #fff; border: 1px solid #eef2f8; border-radius: 16px; box-shadow: var(--c-shadow); overflow: hidden; }
.c-faq__q { margin: 0; }
.c-faq__btn { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 18px 22px; background: none; border: 0; cursor: pointer; text-align: left; font-size: 16px; font-weight: 700; color: var(--c-navy); font-family: inherit; }
.c-faq__btn:focus-visible { outline: 3px solid var(--c-purple); outline-offset: -3px; border-radius: 16px; }
.c-faq__icon { position: relative; width: 18px; height: 18px; flex-shrink: 0; }
.c-faq__icon::before, .c-faq__icon::after { content: ""; position: absolute; background: var(--c-sky); border-radius: 2px; transition: transform 0.25s ease; }
.c-faq__icon::before { top: 8px; left: 0; width: 18px; height: 2px; }
.c-faq__icon::after { top: 0; left: 8px; width: 2px; height: 18px; }
.c-faq__btn[aria-expanded="true"] .c-faq__icon::after { transform: rotate(90deg); opacity: 0; }
.c-faq__a { padding: 0 22px 18px; }

/* ---------- S7 Final ---------- */
.c-final__card { background: linear-gradient(120deg, var(--c-navy), var(--c-purple)); border-radius: 28px; padding: 52px 36px; text-align: center; box-shadow: 0 20px 50px rgba(16, 42, 86, 0.25); }
.c-final__card p { color: rgba(255, 255, 255, 0.88); max-width: 560px; margin: 0 auto 22px; }
.c-final__cta { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* ---------- Reveal ---------- */
.a-reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.6s ease, transform 0.6s ease; }
.a-reveal.is-in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
	.contact-2dtoc__section { padding: 46px 0; }
	.c-hero__grid, .c-guide__grid { grid-template-columns: 1fr; gap: 28px; }
	.c-hero__qr, .c-guide__qr { order: 2; }
	.c-topics__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
	.contact-2dtoc__section { padding: 38px 0; }
	.c-methods__grid, .c-topics__grid { grid-template-columns: 1fr; }
	.c-hero__cta, .c-final__cta { flex-direction: column; }
	.contact-2dtoc__btn { width: 100%; }
	.c-final__card { padding: 38px 22px; }
}

/* ---------- prefers-reduced-motion ---------- */
@media (prefers-reduced-motion: reduce) {
	.a-reveal { opacity: 1; transform: none; transition: none; }
	.contact-2dtoc__btn:hover, .c-card:hover { transform: none; }
	.c-faq__icon::before, .c-faq__icon::after { transition: none; }
}